updated to final version

How to use.txt

@@ -0,0 +1,84 @@
+
+Here is the complete content for the `How to use.txt` file, starting from **point 3** and including all the missing information:
+
+```plaintext
+### How to Install, Start, and Use the Signage Player Application
+
+This guide provides step-by-step instructions for installing, starting, and using the signage player application.
+
+---
+
+## 3. Using the Application
+
+### MediaPlayer Screen
+- **Play/Pause Button**:
+  - Toggles between playing and pausing the media.
+  - Automatically resumes playback after 30 seconds if not toggled again.
+- **Next/Previous Buttons**:
+  - Navigate to the next or previous media in the playlist.
+- **Exit App Button**:
+  - Opens a password-protected popup. Enter the `quickconnect_key` from the configuration file to exit the app.
+
+### Settings Screen
+- **Configuration Fields**:
+  - Update fields like `screen_orientation`, `screen_name`, `quickconnect_key`, `server_ip`, and `port`.
+- **Save Button**:
+  - Saves the updated configuration and returns to the MediaPlayer screen.
+- **Exit App Button**:
+  - Opens a password-protected popup. Enter the `quickconnect_key` to exit the app.
+
+---
+
+## 4. Configuration
+
+### Configuration File
+The configuration file is located at:
+```bash
+app_config.txt
+```
+
+### Example Configuration
+```json
+{
+    "screen_orientation": "Landscape",
+    "screen_name": "MyScreen",
+    "quickconnect_key": "12345",
+    "server_ip": "192.168.1.1",
+    "port": "8080"
+}
+```
+
+### Updating Configuration
+1. Navigate to the **Settings Screen** in the app.
+2. Update the fields and click **Save**.
+3. The configuration will be saved to `app_config.txt`.
+
+---
+
+## 5. Troubleshooting
+
+### Permission Denied for `run_app.sh`
+- Ensure the script is executable:
+  ```bash
+  chmod +x /home/pi/Desktop/signage-player/run_app.sh
+  ```
+
+### Application Does Not Start on Boot
+- Verify the `~/.bashrc` or `crontab` entry is correct.
+- Check the script's permissions and paths.
+
+### Media Files Not Playing
+- Ensure media files are downloaded to the correct directory:
+  ```bash
+  /home/pi/Desktop/signage-player/src/static/resurse
+  ```
+- Check the playlist configuration and server connection.
+
+### Password for Exit App
+- The password is the `quickconnect_key` from the configuration file (`app_config.txt`).
+
+---
+
+Let me know if you need further clarification or additional details!
+```
+